[Webkit-unassigned] [Bug 201684] New: [Win] ASSERT(isMainThread()) is faling in MIMETypeRegistry::getMIMETypeForExtension

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201684

            Bug ID: 201684
           Summary: [Win] ASSERT(isMainThread()) is faling in
                    MIMETypeRegistry::getMIMETypeForExtension
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

Created attachment 378551

  --> https://bugs.webkit.org/attachment.cgi?id=378551&action=review

webkitdirectory-open-panel-crash-log.txt

[Win] ASSERT(isMainThread()) is faling in MIMETypeRegistry::getMIMETypeForExtension

fast/forms/file/entries-api/webkitdirectory-open-panel.html
is crashing in WinCairo WK2 Debug builds.

Callstack:

> [WTF!WTFCrash+0xe]
> [WebKit2!WTFCrashWithInfo+0x20]
> [WebKit2!WebCore::MIMETypeRegistry::getMIMETypeForExtension+0x8a]
> [WebKit2!WebCore::File::computeNameAndContentType+0xed]
> [WebKit2!WebCore::File::create+0x84]
> [WebKit2!WebCore::File::createWithRelativePath+0x87]
> [WebKit2!WebCore::appendDirectoryFiles+0x222]
> [WebKit2!WebCore::appendDirectoryFiles+0x1d0]
> [WebKit2!WebCore::FileListCreator::createFileList<WebCore::FileListCreator::ShouldResolveDirectories::Yes>+0xe3]
> [WebKit2!WebCore::FileListCreator::FileListCreator::<unnamed-tag>::operator+0x68]
> [WebKit2!WTF::Detail::CallableWrapper<`lambda at ..\..\Source\WebCore\html/FileListCreator.cpp:68:31',void>::call+0x17]
> [WTF!WTF::Function<void +0x90]
> [WTF!WTF::WorkQueue::performWorkOnRegisteredWorkThread+0x131]
> [WTF!WTF::WorkQueue::workThreadCallback+0x75]
> [ntdll!RtlpTpWorkCallback+0x165]
> [ntdll!TppWorkerThread+0x8d4]
> [KERNEL32!BaseThreadInitThunk+0x14]
> [ntdll!RtlUserThreadStart+0x21]

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